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Deca Scientific Calculator, Industrial Math

Deca System Scientific Calculator
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INDUSTRIAL MATH FORMULAS & EQUATIONS

Math, it’s all relative:

Pi = 3.14
3.14 ÷ 4 = 0.785
The area of a circle can be found by using the formula "Pi x radius˛ " or by the formula "diameter ˛ x 0.785"


1.732 is a number used often in three phase calculations.
The square root of 3 is 1.732
1.41 is the constant multiplier when determining 45°distance runs from a right angle (90°).
For a right angle triangle: A˛ + B˛ = C˛, (Opposite side˛ + Adjacent side˛ = Hypotenuse˛).
The square root of 2 is 1.41


POWER & ENERGY

Btu per hour x 0.293 = Watts
Kilowatts x 1.341 = Horsepower
Kilowatt-hour x 3412.14 = Btu
Horsepower x 746 = Watts
Horsepower x 550 = Foot-pounds per second
Horsepower x 33000 = Foot-pounds per minute
Horsepower x 42.4072 = Btu per minute
Watts x 0.00134 = Horsepower
Watts x 44.2537 = Foot-pound force per minute
Watts x 0.0568 = Btu per minute
Watts x 3.412 = Btu per hour
Watt second x 1 = Joule
ELECTRICAL CONDUCTOR EQUATIONS

1 Mil = 0.001 Inches
1 Circular Mil = 0.7854 Square Mil
1.27 Circular Mils = 1 Square Mil
Circular Mil of a BUS Bar = (Mils Width x Mils Thickness) ÷ 0.7854
Circular Mil of a ROUND Conductor = (Diameter in Mils)˛
Mils to Metric: 39.37 Mils = 1 Millimeter
Mils to Metric: 1550 Circular Mils = 1 Circular Millimeter
Mils to Metric: 1974 Circular Mils = 1 Square Millimeter
METRIC SYSTEM BASICS

Micro = 0.000001
Milli = 0.001
Centi = 0.01
Deci = 0.1
Deka = 10
Hecto= 100
Kilo = 1,000
Mega= 1,000,000
TEMPERATURE

F° = Degrees Fahrenheit
C° = Degrees Centigrade
Degrees Fahrenheit = 32 + (9/5 x C° )
Degrees Centigrade = 5/9 x ( F° - 32 )
METRIC SYSTEM CONVERSIONS

1 Inch = 2.54 Centimeters
1 Centimeter = 0.3937 Inches
1 Inch = 25.4 Millimeters
1 Millimeter = 0.03937 Inches
1 Foot = 0.3048 Meters
1 Meter = 3.281 Feet
1 Yard = 0.9144 Meters
1 Meter = 1.094 Yards
1 Mile = 1.609 Kilometers
1 Kilometer = 0.6214 Miles

Main Page & Introduction

Ohm's Law Calculator, Electrical Conversions & Equations
Definitions & Terminology
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Every effort is taken in order to maintain accuracy in the information contained within this web site. However, the author of this site shall not be held liable for the use of the information or of its consequences. Although all of the information is believed to be accurate you are encouraged to consult other sources for additional information or clarification. If you are a student your instructor may have very specific terminology that is required to be used for your particular field of study and therefore you should consult your textbooks and study notes for that information. It is my hope that this site will be both educational and beneficial to those of you who use it. I welcome your comments and suggestions in regards to this site. Thanks for visiting!

Henry J. Bacon

Email: voltampkva@aol.com